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High-Tech Images Show How Viruses Infect Cells At the University of Texas Medical School at Houston, Jun Liu uses a powerful electron microscope to examine E. coli bacteria and the tiny T-7 virus that infects them. Liu says until now, scientists coul
VOA标准英语2013年(一月)
DEVELOPMENT REPORT -February 18, 2002: Infectious Diseases By Jill Moss This is the VOA Special English Development Report. The World Health Organization and several other United Nations agencies are
农业与发展
Americans Turn to AIDS Drugs to Prevent HIV Infection New research in Africa confirms that a once-a-day pill, used to treat patients infected with the virus which causes AIDS, also works to prevent HIV infection in healthy people. For 20-year-old New
VOA标准英语2011年(七月)
Scientists Infect Mosquitoes to Stop Dengue Australian researchers report success in attacking the insects that carry the dengue virus, a rarely fatal disease that nonetheless takes a huge toll in sickness and economic loss in the tropical areas wher
VOA标准英语2011年(八月)
BEIJING, Aug. 7 (Xinhua) -- Infectious diseases claimed 1,669 lives on the Chinese mainland in July, with AIDS contributing to 70 percent of the deaths, the Ministry of Health (MOH) said Tuesday. A total of 5,552 AIDS cases, which is categorized as a
英语新闻
High-Tech Device Reduces Risk of Hospital Infections This machine fires bursts of ultraviolet, or UV, light that penetrate the cells of micro-organisms and kill them. The organisms have no chance to adapt and gain immunity as they might with a chemic
VOA标准英语2012年(二月)